of fixing the beneficial ownership of real property interests in the Colorado River Reservation now occupied by the Colorado
River Indian Tribes, its members, and certain Indian colonists, all right, title, and interest of the United States in the
unallotted lands of the Colorado River Reservation, including water rights and mineral rights therein, together with all improvements
located thereon and appurtenant thereto, except improvements placed on the land by assignees or by Indian colonists, and except
improvements furnished by the United States for administrative purposes (including irrigation facilities) or for the housing
of Federal employees, are hereby declared to be tribal property held in trust by the United States for the use and benefit
of the Colorado River Indian Tribes of the Colorado River Reservation.

SEC. 2.

For the purpose of this Act:

(a) "Tribes" means the Colorado River Indian Tribes of the Colorado River Reservation, with a constitution adopted pursuant
to the Indian Reorganization Act of June 18, 1934 (48 Stat. 984; 25 U. S. C. 461 et seq.), as said constitution now exists
or may hereafter be amended, consisting of a band of the Mohave Indians, the band of Chemehuevi Indians affiliated therewith,
and various Indians heretofore or hereafter adopted by the Colorado River Indian Tribes.

(b) "Colorado River Reservation" means the reservation for Indian use established by the Act of March 3, 1865 (13 Stat. 559),
as modified and further defined by Executive orders of November 22, 1873, November 16, 1874, May 15, 1876, and November 22,
1915, all of which area shall be deemed to constitute said reservation.

SEC. 3.

Any person of Indian blood, his spouse of Indian blood (excluding persons whose Indian blood is traceable solely to Indian
tribes, bands, or groups not resident in or subject to the jurisdiction of the United States), and any dependent child of
either or both of them, who is not a member of the tribes on the date of this Act, and who has settled on irrigated lands
of the Colorado River Reservation through application for a settler's land permit and who is still holding such lands by virtue
of the authority of a temporary land use permit issued by or under the authority of the tribes or the Federal Government,
shall be deemed to be adopted by the tribes if within two years from the date of this Act he files with the tribal council
a statement accepting membership in the tribes and renouncing membership in any other tribe, band, or group. Such statement
may be filed on behalf of a dependent child by either parent or by a person standing in loco parentis.

SEC. 4.

This Act shall become effective upon the agreement of the tribes
to abandon the claims now pending in docket numbered 185 and in docket numbered 283A before the Indian Claims Commission under the Act of August 13, 1946 (60 Stat. 1049), and the dismissal of said claims
by the Indian Claims Commission. Nothing in this Act shall affect or be taken into consideration in the adjudication of, or
with respect to, any other claims now pending by the tribes against the United States.

SEC. 5.

The Act of June 11, 1960 (74 Stat. 199), as amended by the Act of September 5, 1962 (76 Stat. 428), is amended to read as
follows:

"The Secretary of the Interior is authorized to approve leases of lands on the Colorado River Indian Reservation, Arizona
and California, for such uses and terms as are authorized by the Act of May 11, 1938 (52 Stat. 347; 25 U. S. C. 396a et seq.),
and the Act of August 9, 1955 (69 Stat. 539), as amended (25 U. S. C. 415 et seq.) including the same uses and terms as are
permitted thereby on the Agua Caliente (Palm Springs), Dania, Navajo, and Southern Ute Reservations: Provided, however, That the authorization herein granted to the Secretary of the Interior shall not extend to any lands lying west of the

present course of the Colorado River and south of section 25 of township 2 south, range 23 east, San Bernardino base and meridian
in California, and shall not be construed to affect the resolution of any controversy over the location of the boundary of
the Colorado River Reservation: Provided further, That any of the described lands in California shall be subject to the provisions
of this Act when and if determined to be within the reservation."